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package app
import (
"context"
"fmt"
"io"
"net/http"
"os"
"os/signal"
"syscall"
"time"
"github.com/gabehf/kanpeki/app/middleware"
"github.com/gabehf/kanpeki/internal/cfg"
"github.com/gabehf/kanpeki/internal/db"
"github.com/gabehf/kanpeki/internal/logger"
"github.com/go-chi/chi/v5"
chimiddleware "github.com/go-chi/chi/v5/middleware"
"github.com/rs/zerolog"
)
func NewServer(logger *zerolog.Logger, cfg *cfg.Config, db db.DB) http.Handler {
mux := chi.NewRouter()
// bind general middleware to mux
mux.Use(middleware.Logger(logger))
mux.Use(chimiddleware.RealIP)
mux.Use(chimiddleware.Recoverer)
// call router binds on mux
bindRoutes(mux, logger, cfg, db)
return mux
}
func Run(
ctx context.Context,
getenv func(string) string,
stdout io.Writer,
db db.DB,
) error {
cfg, err := cfg.Load(getenv)
if err != nil {
return fmt.Errorf("failed to load configuration: %v", err)
}
logger := logger.Get(cfg).Output(stdout)
srv := NewServer(&logger, cfg, db)
httpServer := &http.Server{
Addr: cfg.ListenAddr,
Handler: srv,
}
logger.Info().Msg("listening on " + cfg.ListenAddr)
if err := httpServer.ListenAndServe(); err != nil && err != http.ErrServerClosed {
return err
}
// Wait for interrupt signal to gracefully shutdown the server with a timeout of 10 seconds.
// Use a buffered channel to avoid missing signals as recommended for signal.Notify
quit := make(chan os.Signal, 1)
signal.Notify(quit, os.Interrupt, syscall.SIGINT, syscall.SIGTERM)
<-quit
logger.Info().Msg("recieved server shutdown notice")
ctx, cancel := context.WithTimeout(ctx, 10*time.Second)
defer cancel()
logger.Info().Msg("waiting for all processes to finish...")
if err := httpServer.Shutdown(ctx); err != nil {
return err
}
logger.Info().Msg("shutdown successful")
return nil
}